Bayanin Fasaha na Nunin LED na LTC-4624JF - Tsayin Lamba 0.4-inch - AlInGaP Yellow Orange - 2.6V Forward Voltage - Takardun Fasaha na Hausa

1. Bayyani Game da Samfur

LTC-4624JF wani babban aiki ne, mai lamba uku, bakwai-sashe, na'urar nunin LED da aka tsara don aikace-aikacen da ke buƙatar karanta lambobi a sarari. Babban aikinsa shi ne wakiltar bayanan lambobi ta gani tare da tsabta da aminci. Babban fa'idar wannan na'urar ya ta'allaka ne a amfani da fasahar AlInGaP (Aluminum Indium Gallium Phosphide) mai ci gaba don guntu na LED, wanda ke ba da ingantaccen haske da tsaftar launi idan aka kwatanta da tsofaffin fasahohi kamar GaAsP na yau da kullun. Kasuwar da aka yi niyya ta haɗa da kayan aikin masana'antu, kayan aikin gwaji da aunawa, tsarin tallace-tallace, dashboard na motoci (don nunin bayan saye ko na biyu), da kowane tsarin da aka haɗa inda ake buƙatar ƙaramin nunin lambobi mai haske da sauƙin haɗawa.

2. Zurfafa Ƙayyadaddun Bayanan Fasaha

2.1 Halayen Hoto da Na Gani

Aikin gani shine tsakiyar aikin nunin. Na'urar tana amfani da guntun AlInGaP akan wani abu na GaAs marar wucewa, yana fitar da haske a cikin bakan rawaya-orange. Matsakaicin Ƙarfin Hasken (Iv)an ƙayyade shi daga mafi ƙarancin 200 µcd zuwa ƙimar yau da kullun na 650 µcd a daidaitaccen gwajin na'urar na 1mA. Wannan babban haske, haɗe da fuskar launin toka da sassuna fari, yana tabbatar da kyakkyawan bambanci da bayyanar haruffa. Matsakaicin Tsawon Zangon Fitowa (λp)yawanci 611 nm ne, tare da Matsakaicin Tsawon Zangon (λd)na 605 nm, yana tabbatar da cewa fitowar tana cikin yankin rawaya-orange. Rabin Faɗin Layin Bakan (Δλ)yana kusan 17 nm, yana nuna fitowar launi mai tsafta. Matsakaicin Daidaitaccen Ƙarfin Haskenna 2:1 (matsakaici) yana tabbatar da daidaiton haske a cikin sassunan nunin.

2.2 Ma'auni na Lantarki

Ƙayyadaddun lantarki suna bayyana iyakokin aiki da sharuɗɗa don amintaccen amfani. Ƙarfin Lantarki na Kowane Sashe (VF)yana da ƙimar yau da kullun na 2.6V a ƙarfin lantarki na gaba (IF) na 20mA, tare da matsakaicin 2.6V. Ƙarfin Lantarki na Baya na Kowane Sashean ƙididdige shi zuwa matsakaicin 5V. Ci gaba da Ƙarfin Lantarki na Gaba na Kowane Sasheshine 25 mA a 25°C, tare da ƙimar ragewa na 0.33 mA/°C don yanayin zafi sama da 25°C. Don aikin bugun jini, Matsakaicin Ƙarfin Lantarki na Gabana 90 mA an yarda da shi a ƙarƙashin takamaiman sharuɗɗa (1/10 aikin aiki, 0.1ms faɗin bugun jini). Ƙarfin Lantarki na Baya na Kowane Sashe (IR)shine matsakaicin 100 µA a cikakken ƙarfin lantarki na baya na 5V.

2.3 Zafin Jiki da Matsakaicin Ƙididdiga

Waɗannan ƙididdiga suna bayyana iyakokin damuwa waɗanda sama da su lalacewa na dindindin na iya faruwa. Rashin Ƙarfin Wutar Lantarki na Kowane Sashebai kamata ya wuce 70 mW ba. An ƙididdige na'urar don Kewayon Zafin Aikina -35°C zuwa +85°C, tare da irin wannan Kewayon Zafin Ajiya. Don haɗawa, matsakaicin Zafin Soldershine 260°C na matsakaicin tsawon lokaci na dakika 3, wanda aka auna 1.6mm ƙasa da matakin wurin zama na kayan. Yin bin waɗannan iyakokin yana da mahimmanci don dogon lokacin aminci.

3. Tsarin Rarrabawa da Rarrabuwa

Takardar bayanan ta bayyana a sarari cewa na'urar An Rarraba ta don Ƙarfin Hasken. Wannan yana nufin an tsara LED ɗin (an rarrabe su) bisa ga ƙimar hasken da aka auna a daidaitaccen yanayin gwaji (mai yiwuwa IF=1mA). Wannan yana ba masu ƙira damar zaɓar sassa masu daidaitaccen matakan haske don aikace-aikacensu, yana hana bambance-bambance a bayyane a cikin ƙarfin nunin tsakanin raka'o'i daban-daban ko batutuwan samarwa. Yayin da takardar ba ta cika bayyana takamaiman lambobin kwandon ba, aikin yana tabbatar da cewa an cika mafi ƙarancin ƙarfin haske na 200 µcd.

4. Bincike na Lanƙwasa Aiki

Takardar bayanan ta haɗa da sashe don Yau da Kullun na Lantarki / Halayen Gani na Lanƙwasa. Ko da yake ba a cika bayyana takamaiman lanƙwasa a cikin rubutun da aka bayar ba, irin waɗannan jadawalin yawanci suna nuna alaƙa tsakanin ƙarfin lantarki na gaba (IF) da ƙarfin lantarki na gaba (VF), alaƙar tsakanin ƙarfin haske (Iv) da ƙarfin lantarki na gaba (IF), da kuma yadda ƙarfin haske ke bambanta da yanayin zafi na muhalli. Waɗannan lanƙwasa suna da matuƙar mahimmanci ga masu ƙira don inganta ƙarfin tuƙi don hasken da ake so yayin sarrafa ɓarnar wutar lantarki da fahimtar aiki a ƙarƙashin yanayin zafi mara daidaito.

5. Bayanin Injiniya da Kunshin

5.1 Girman Jiki

Na'urar tana da tsayin lamba na 0.4 inches (10.0 mm). An ba da girman kunshin a cikin cikakken zane tare da duk ma'auni a cikin milimita. Tolerances gabaɗaya ±0.25 mm ne sai dai idan an ƙayyade su. Wannan bayanin yana da mahimmanci don ƙirar sawun PCB da tabbatar da dacewar cikin akwatin samfurin ƙarshe.

5.2 Pinout da Zanen Haɗin kai

LTC-4624JF nuni ne na gama-gari mai yawa. Yana da fil 15, ko da yake ba duka ake amfani da su ba. Zanen da'irar ciki da teburin haɗin fil sun nuna yadda fil ɗin anode gama-gari guda uku (na Lamba 1, Lamba 2, da Lamba 3) da 14 katod ɗin sashe (A, B, C, D, E, F, G, DP, da LED daban-daban guda uku L1, L2, L3) suka tsara. Akwai takamaiman fil na anode gama-gari (fil 14) don LED daban-daban (L1, L2, L3). Wannan ƙirar da aka haɗa tana ba da damar sarrafa lambobi 3 da ƙarin alamomi tare da rage adadin fil ɗin microcontroller I/O.

6. Jagororin Solder da Haɗawa

Babban jagora da aka bayar shine iyakar zafin solder: matsakaicin 260°C na matsakaicin dakika 3, wanda aka auna 1.6mm ƙasa da matakin wurin zama. Wannan daidaitaccen sigar sake kunnawa ne. Yana da mahimmanci a bi shawarar sake kunnawa don hanyoyin solder marasa gubar don hana lalacewar zafi ga guntun LED ko kunshin filastik. Ya kamata a adana na'urar a cikin ƙayyadaddun kewayon zafinta (-35°C zuwa +85°C) a cikin yanayi mai bushewa kafin amfani.

7. Shawarwari na Aikace-aikace

7.1 Da'irori na Aikace-aikacen Yau da Kullun

A matsayin anode gama-gari, nunin da aka haɗa, yana buƙatar da'irar tuƙi ta waje. Yawanci, fil ɗin anode gama-gari ana haɗa su zuwa mai tattara (ko magudanar ruwa) na transistors na PNP (ko MOSFETs na tashoshi-P) waɗanda microcontroller ke kunna su. Fil ɗin katod ɗin sashe ana haɗa su zuwa masu jurewa na yanzu sannan zuwa fitar da IC ɗin mai tuƙi (kamar 74HC595 mai canza rajista ko takamaiman direban LED) ko kai tsaye zuwa fil ɗin microcontroller tare da isasshen ƙarfin nutsewar yanzu. Ana samun haɗawa ta hanyar bi da bi kunna anode gama-gari na lamba ɗaya a lokaci ɗaya yayin gabatar da bayanan sashe na wannan lambar, yana zagayawa cikin duk lambobi cikin sauri don ƙirar hoto mai dorewa (yawanci >60 Hz).

7.2 Abubuwan Tunani na Ƙira

• Iyakar Yanzu:Mahimmanci don hana wucewa mafi ƙarancin ci gaba da ƙarfin lantarki na gaba (25mA/sashe). Dole ne a ƙididdige masu jurewa bisa ga ƙarfin wutar lantarki, ƙarfin lantarki na gaba na LED (VF), da yanzun da ake so.
• Mita na Haɗawa:Dole ne ya yi girma sosai don guje wa kallon flicker. Ƙimar sabuntawa na 100-200 Hz kowace lamba ya zama ruwan dare.
• Matsakaicin Yanzu:A cikin saitin da aka haɗa, yanzu na nan take na kowane sashe yayin ɗan gajeren lokacinsa zai fi matsakaicin yanzu. Tabbatar cewa matsakaicin yanzu bai wuce ƙimar 90mA ba don zaɓin aikin aiki.
• Kusurwar Dubawa:Faɗin kusurwar dubawa yana da amfani ga aikace-aikacen da nunin zai iya kasancewa daga wuraren da ba su da tsakiya.
• Kariya daga ESD:LEDs suna da hankali ga fitar da lantarki mai tsauri. Yi amfani da shi tare da kariya daga ESD yayin haɗawa.

8. Kwatancen Fasaha da Bambance-bambance

Babban bambance-bambancen LTC-4624JF shine amfani da AlInGaPfasaha. Idan aka kwatanta da jajayen LED na GaAsP na gargajiya, AlInGaP yana ba da ingantaccen haske sosai, ma'ana fitowar haske mafi haske don irin wannan ƙarfin tuƙi, ko kuma irin wannan haske a ƙaramin ƙarfi. Hakanan yana ba da ingantaccen jikewa da kwanciyar hankali akan zafi da tsawon rayuwa. Ƙirar fuskar launin toka/sashe fari tana haɓaka bambanci. Tsayin lamba 0.4-inch yana ba da daidaitaccen ma'auni tsakanin girma da karantawa, yana dacewa tsakanin ƙananan nunin 0.3-inch da manyan nunin 0.5 ko 0.56-inch.

9. Tambayoyin da ake yawan yi (Bisa Ƙayyadaddun Bayanan Fasaha)

Q: Menene manufar LED daban-daban L1, L2, L3?

A: Waɗannan alamun LED ne na mutum ɗaya, daban da lambobin bakwai-sashe. Ana iya amfani da su don alamomin matsayi, mahaɗa a cikin nunin agogo, ko wasu ayyuka na alama, suna ba da ƙarin aiki fiye da lambobi kawai.

Q: Ta yaya zan ƙididdige ƙimar mai jurewa na yanzu?

A: Yi amfani da Dokar Ohm: R = (V_supply - VF) / I_desired. Don samar da wutar lantarki 5V, VF na 2.6V, da yanzun da ake so na 15mA: R = (5 - 2.6) / 0.015 = 160 Ohms. Yi amfani da mafi kusancen ƙimar daidaitaccen (misali, 150 ko 180 Ohms).

Q: Zan iya tuƙa wannan nunin ba tare da haɗawa ba?

A: A zahiri i, ta hanyar haɗa duk anodes gama-gari tare da tuƙa kowane katod ɗin sashe da kansu. Duk da haka, wannan zai buƙaci layukan tuƙi 11 (sassuna 8 + DP + LED 3) maimakon ƙirar da aka haɗa ta rage ƙidaya, yana sa ya zama mara inganci don amfani da fil ɗin microcontroller.

Q: Menene ma'anar "an rarraba don ƙarfin haske" ga ƙirar na?

A: Yana tabbatar da daidaiton haske. Don mahimman aikace-aikacen inda bayyanar daidaitaccen yake da mahimmanci, kuna iya ƙayyade ƙaramin lambar kwandon daga mai kera idan akwai. Don yawancin aikace-aikace, daidaitaccen rarrabuwa ya isa.

10. Ƙira na Aiki da Amfani da Harka

Harka: Ƙirar Karatun Voltmeter Mai Lamba Uku Mai Sauƙi.Microcontroller tare da ADC yana auna ƙarfin lantarki. Firmware yana canza karatun zuwa lambobin BCD guda uku. Katsewar timer tana haifar da tsarin haɗawa a 150 Hz. Tsarin: 1) Kashe duk direbobin anode na lamba. 2) Fitar da tsarin sashe don Lamba 1 zuwa direban katod na IC. 3) Kunna transistor don anode na Lamba 1. 4) Jira ɗan gajeren lokaci. 5) Maimaita don Lambobi 2 da 3. LED daban-daban (L1, L2, L3) za a iya amfani da su don nuna kewayon aunawa (misali, mV, V, Auto-range). Babban haske da bambanci suna tabbatar da karantawa a ƙarƙashin yanayin haske daban-daban a cikin dakin gwaje-gwaje ko wurin filin.

11. Gabatarwar Ka'idar Fasaha

Babban fasaha shine AlInGaP LED. AlInGaP wani abu ne na semiconductor na III-V inda Aluminum, Indium, Gallium, da Phosphorus suka haɗu a cikin takamaiman ma'auni don ƙirar kayan bandgap kai tsaye wanda ke fitar da haske a cikin bakan ja zuwa rawaya-kore. "GaAs substrate marar wucewa" da aka ambata yana nufin cewa substrate girma yana ɗaukar wasu hasken da aka samar, amma kanta AlInGaP mai aiki yana da inganci sosai. Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan haɗin p-n, electrons da ramuka suna sake haɗuwa, suna sakin makamashi a cikin nau'in photons. Takamaiman abun da ke ciki yana ƙayyade tsawon zango (launi) na hasken da aka fitar, wanda a wannan yanayin shine rawaya-orange.

12. Trends na Fasaha da Mahallin

Yayin da sabbin fasahohin nuni kamar OLED da LCD masu ƙima sun mamaye kayan lantarki na mabukaci, nunin LED bakwai-sashe sun kasance masu mahimmanci a cikin mahallin masana'antu, kasuwanci, da haɗawa saboda sauƙinsu, ƙarfi, babban haske, faɗin kewayon zafin aiki, da ƙarancin farashi don aikace-aikacen lambobi kawai. Trend a cikin wannan ɓangaren yana zuwa ga kayan aiki mafi inganci (kamar AlInGaP maye gurbin GaAsP), ƙananan girman kunshin, ƙananan ƙarfin lantarki na aiki, da haɗakar da'irar tuƙi. Duk da haka, ainihin gine-ginen haɗawa, na'urorin anode gama-gari kamar LTC-4624JF sun tabbatar da inganci na shekaru da yawa saboda sauƙinsa na lantarki da na ra'ayi.